1 /* SPDX-License-Identifier: LGPL-2.1-or-later
2  * Copyright © 2019 VMware, Inc. */
3 #pragma once
4 
5 #include "conf-parser.h"
6 #include "networkd-util.h"
7 
8 typedef struct Link Link;
9 typedef struct Manager Manager;
10 typedef struct Network Network;
11 
12 typedef enum QDiscKind {
13         QDISC_KIND_BFIFO,
14         QDISC_KIND_CAKE,
15         QDISC_KIND_CODEL,
16         QDISC_KIND_DRR,
17         QDISC_KIND_ETS,
18         QDISC_KIND_FQ,
19         QDISC_KIND_FQ_CODEL,
20         QDISC_KIND_FQ_PIE,
21         QDISC_KIND_GRED,
22         QDISC_KIND_HHF,
23         QDISC_KIND_HTB,
24         QDISC_KIND_NETEM,
25         QDISC_KIND_PFIFO,
26         QDISC_KIND_PFIFO_FAST,
27         QDISC_KIND_PFIFO_HEAD_DROP,
28         QDISC_KIND_PIE,
29         QDISC_KIND_QFQ,
30         QDISC_KIND_SFB,
31         QDISC_KIND_SFQ,
32         QDISC_KIND_TBF,
33         QDISC_KIND_TEQL,
34         _QDISC_KIND_MAX,
35         _QDISC_KIND_INVALID = -EINVAL,
36 } QDiscKind;
37 
38 typedef struct QDisc {
39         Link *link;
40         Network *network;
41         ConfigSection *section;
42         NetworkConfigSource source;
43         NetworkConfigState state;
44 
45         uint32_t handle;
46         uint32_t parent;
47 
48         char *tca_kind;
49         QDiscKind kind;
50 } QDisc;
51 
52 typedef struct QDiscVTable {
53         size_t object_size;
54         const char *tca_kind;
55         /* called in qdisc_new() */
56         int (*init)(QDisc *qdisc);
57         int (*fill_message)(Link *link, QDisc *qdisc, sd_netlink_message *m);
58         int (*verify)(QDisc *qdisc);
59 } QDiscVTable;
60 
61 extern const QDiscVTable * const qdisc_vtable[_QDISC_KIND_MAX];
62 
63 #define QDISC_VTABLE(q) ((q)->kind != _QDISC_KIND_INVALID ? qdisc_vtable[(q)->kind] : NULL)
64 
65 /* For casting a qdisc into the various qdisc kinds */
66 #define DEFINE_QDISC_CAST(UPPERCASE, MixedCase)                           \
67         static inline MixedCase* UPPERCASE(QDisc *q) {                    \
68                 if (_unlikely_(!q || q->kind != QDISC_KIND_##UPPERCASE))  \
69                         return NULL;                                      \
70                                                                           \
71                 return (MixedCase*) q;                                    \
72         }
73 
74 DEFINE_NETWORK_CONFIG_STATE_FUNCTIONS(QDisc, qdisc);
75 
76 QDisc* qdisc_free(QDisc *qdisc);
77 int qdisc_new_static(QDiscKind kind, Network *network, const char *filename, unsigned section_line, QDisc **ret);
78 
79 int link_find_qdisc(Link *link, uint32_t handle, uint32_t parent, const char *kind, QDisc **qdisc);
80 
81 int link_request_qdisc(Link *link, QDisc *qdisc);
82 
83 void network_drop_invalid_qdisc(Network *network);
84 
85 int manager_rtnl_process_qdisc(sd_netlink *rtnl, sd_netlink_message *message, Manager *m);
86 
87 DEFINE_SECTION_CLEANUP_FUNCTIONS(QDisc, qdisc_free);
88 
89 CONFIG_PARSER_PROTOTYPE(config_parse_qdisc_parent);
90 CONFIG_PARSER_PROTOTYPE(config_parse_qdisc_handle);
91 
92 #include "cake.h"
93 #include "codel.h"
94 #include "ets.h"
95 #include "fifo.h"
96 #include "fq-codel.h"
97 #include "fq-pie.h"
98 #include "fq.h"
99 #include "gred.h"
100 #include "hhf.h"
101 #include "htb.h"
102 #include "pie.h"
103 #include "qfq.h"
104 #include "netem.h"
105 #include "drr.h"
106 #include "sfb.h"
107 #include "sfq.h"
108 #include "tbf.h"
109 #include "teql.h"
110